公开(公告)号：US20200350535A1

公开(公告)日：2020-11-05

申请号：US16935106

申请日：2020-07-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuta Moriura ,  Kenichi Ono ,  Hironobu Ukitsu ,  Shinobu Masuda ,  Yui Sawada ,  Seiichi Hatakenaka

IPC: H01M2/10 ,  H01M10/48 ,  H01M10/6571 ,  H01M10/6555 ,  H01M10/615 ,  H01M10/44

Abstract: The present invention provides a secondary battery in which effective utilization of the installation space for a pressure sensitive sensor and a heater is more sufficiently achieved and high rate deterioration and electrolytic solution deterioration can be more sufficiently detected. The present invention relates to a secondary battery including: one or more battery cells; a case for housing the battery cells; and a heater provided between a battery cell in contact with the case and the case and/or between two battery cells adjacent to each other among the battery cells, in which the heater serves as a pressure sensitive sensor that detects a pressure distribution between the battery cell in contact with the case and the case and/or between the two battery cells adjacent to each other.

公开(公告)号：US11296383B2

公开(公告)日：2022-04-05

申请号：US16935106

申请日：2020-07-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuta Moriura ,  Kenichi Ono ,  Hironobu Ukitsu ,  Shinobu Masuda ,  Yui Sawada ,  Seiichi Hatakenaka

IPC: H01M50/20 ,  H01M10/615 ,  H01M10/6555 ,  H01M10/6571 ,  H01M10/44 ,  H01M10/48

Abstract: The present invention provides a secondary battery in which effective utilization of the installation space for a pressure sensitive sensor and a heater is more sufficiently achieved and high rate deterioration and electrolytic solution deterioration can be more sufficiently detected. The present invention relates to a secondary battery including: one or more battery cells; a case for housing the battery cells; and a heater provided between a battery cell in contact with the case and the case and/or between two battery cells adjacent to each other among the battery cells, in which the heater serves as a pressure sensitive sensor that detects a pressure distribution between the battery cell in contact with the case and the case and/or between the two battery cells adjacent to each other.